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Support for file input and output, including multiple input files with proper position tracking.

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This commit is contained in:
Chris Fallin
2021-09-04 14:04:19 -07:00
parent e9a57d854d
commit 638c9edd01
8 changed files with 255 additions and 90 deletions
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17
cranelift/isle/src/codegen.rs
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@@ -512,9 +512,17 @@ impl<'a> Codegen<'a> {
pub fn generate_rust(&self) -> Result<String, Error> {
let mut code = String::new();
writeln!(&mut code, "// GENERATED BY ISLE. DO NOT EDIT!")?;
writeln!(&mut code, "//")?;
writeln!(
&mut code,
"use super::*; // Pulls in all external types and ctors/etors"
"// Generated automatically from the instruction-selection DSL code in:",
)?;
for file in &self.typeenv.filenames {
writeln!(&mut code, "// - {}", file)?;
}
writeln!(
&mut code,
"\nuse super::*; // Pulls in all external types and ctors/etors"
)?;
self.generate_internal_types(&mut code)?;
Ok(code)
@@ -533,10 +541,11 @@ impl<'a> Codegen<'a> {
let name = &self.typeenv.syms[name.index()];
writeln!(
code,
"\n// Internal type {}: defined at {}.",
"\n/// Internal type {}: defined at {}.",
name,
pos.pretty_print_line(&self.typeenv.filename)
pos.pretty_print_line(&self.typeenv.filenames[..])
)?;
writeln!(code, "#[derive(Clone, Debug)]")?;
writeln!(code, "enum {} {{", name)?;
for variant in variants {
let name = &self.typeenv.syms[variant.name.index()];
@@ -546,7 +555,7 @@ impl<'a> Codegen<'a> {
let ty_name = self.typeenv.types[field.ty.index()].name(&self.typeenv);
writeln!(code, " {}: {},", name, ty_name)?;
}
writeln!(code, " }}")?;
writeln!(code, " }},")?;
}
writeln!(code, "}}")?;
}